/* =====================================================================
   SỐNG ĐỘNG — lớp giao diện thêm cho Blog Môi Giới (06/11/2026)
   Khối trang chủ, trang dự án, hiệu ứng hiện dần, nút Zalo nổi.
   Màu chính lấy từ --chinh (Cài đặt → mg_mau_thuong_hieu).
   --nhan là màu nhấn: chỉ dùng MỘT chỗ mỗi trang (con số cần chú ý).
   ===================================================================== */
:root{
  --nhan:#8a1c2c;
  --nga:#f6f4f0;
  --nen-xanh:#f3f6fa;
  --dam:color-mix(in srgb,var(--chinh) 62%,#000);
}
html{scroll-behavior:smooth;scroll-padding-top:84px}
[hidden]{display:none!important}

/* ---------- Đầu trang dính ---------- */
.dau{position:sticky;top:0;z-index:60;background:rgba(255,255,255,.9);
     -webkit-backdrop-filter:saturate(1.4) blur(12px);backdrop-filter:saturate(1.4) blur(12px);transition:box-shadow .3s}
.dau.da-cuon{box-shadow:0 6px 26px rgba(15,30,50,.09)}
.admin-bar .dau{top:32px}
.menu a{position:relative;padding:4px 0}
.menu a::after{content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;background:var(--chinh);transform:scaleX(0);transform-origin:left;transition:transform .25s}
.menu a:hover::after,.menu a[aria-current=page]::after{transform:scaleX(1)}
.menu a[aria-current=page]{color:var(--chinh)}
.phai .nut{transition:transform .2s,box-shadow .2s}
.phai .nut:hover{transform:translateY(-1px);box-shadow:0 8px 20px color-mix(in srgb,var(--chinh) 35%,transparent)}

/* ---------- Nút ---------- */
.sd-nut{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:14px 26px;border-radius:999px;
        font-weight:700;font-size:1rem;line-height:1.2;transition:transform .2s,box-shadow .2s,background .2s,color .2s;text-align:center}
.sd-nut:hover{transform:translateY(-2px)}
.sd-nut-trang{background:#fff;color:var(--chinh);box-shadow:0 12px 30px rgba(0,0,0,.22)}
.sd-nut-vien{border:1.5px solid rgba(255,255,255,.55);color:#fff}
.sd-nut-vien:hover{background:rgba(255,255,255,.12)}
.sd-nut-xanh{background:var(--chinh);color:#fff;box-shadow:0 10px 26px color-mix(in srgb,var(--chinh) 30%,transparent)}
.sd-nut-vien-xanh{border:1.5px solid var(--chinh);color:var(--chinh);background:#fff}
.sd-nut-vien-xanh:hover{background:var(--nen-xanh)}
.sd-hero-nut{display:flex;flex-wrap:wrap;gap:12px}

/* ---------- Nhãn & tiêu đề khối ---------- */
.sd-muc{padding:92px 0}
.sd-nhan{display:inline-flex;gap:10px;align-items:center;font-size:.78rem;font-weight:700;letter-spacing:.16em;text-transform:uppercase;color:rgba(255,255,255,.78);margin:0 0 18px}
.sd-nhan::before{content:"";width:28px;height:2px;background:currentColor}
.sd-nhan-xanh{font-size:.78rem;font-weight:700;letter-spacing:.16em;text-transform:uppercase;color:var(--chinh);margin:0 0 12px}
.sd-dau-muc{max-width:720px;margin:0 0 42px}
.sd-dau-muc h2{font-size:clamp(1.7rem,3.1vw,2.45rem);line-height:1.14;letter-spacing:-.032em;font-weight:800;margin:0 0 12px;text-wrap:balance}
.sd-dau-muc p{color:var(--mo);margin:0;font-size:1.07rem;text-wrap:pretty}
.sd-giua{text-align:center;margin-left:auto;margin-right:auto}

/* ---------- Dải mở đầu trang chủ ---------- */
.sd-hero{position:relative;overflow:hidden;isolation:isolate;color:#fff;padding:78px 0 0;
  background:linear-gradient(135deg,var(--dam) 0%,var(--chinh) 58%,color-mix(in srgb,var(--chinh) 80%,#fff) 100%)}
.sd-hero::before,.sd-hero::after{content:"";position:absolute;z-index:-1;border-radius:50%;filter:blur(10px);opacity:.55}
.sd-hero::before{width:620px;height:620px;right:-160px;top:-260px;background:radial-gradient(circle,rgba(255,255,255,.22),transparent 65%);animation:sd-bay 16s ease-in-out infinite}
.sd-hero::after{width:520px;height:520px;left:-200px;bottom:-240px;background:radial-gradient(circle,rgba(255,255,255,.12),transparent 65%);animation:sd-bay 20s ease-in-out infinite reverse}
@keyframes sd-bay{0%,100%{transform:translate(0,0)}50%{transform:translate(-40px,30px)}}
.sd-hero-luoi{display:grid;grid-template-columns:1.3fr .7fr;gap:60px;align-items:center;padding-bottom:70px}
.sd-hero h1{font-size:clamp(2rem,4.3vw,3.3rem);line-height:1.08;letter-spacing:-.038em;font-weight:800;margin:0 0 20px;text-wrap:balance}
.sd-hero-phu{font-size:1.14rem;line-height:1.62;color:rgba(255,255,255,.86);max-width:54ch;margin:0 0 32px;text-wrap:pretty}
.sd-hero-anh{position:relative;justify-self:center;width:min(330px,100%)}
.sd-hero-anh img{display:block;width:100%;aspect-ratio:4/5;object-fit:cover;object-position:50% 14%;border-radius:26px;
  box-shadow:0 34px 70px rgba(0,0,0,.38);border:1px solid rgba(255,255,255,.2)}
.sd-the{position:absolute;background:#fff;color:var(--chu);border-radius:14px;padding:11px 15px;box-shadow:0 16px 36px rgba(0,0,0,.24);
  display:flex;flex-direction:column;line-height:1.25;animation:sd-troi 6s ease-in-out infinite}
.sd-the b{font-size:1.06rem;color:var(--chinh);font-weight:800}
.sd-the span{font-size:.78rem;color:var(--mo);max-width:17ch}
.sd-the-1{left:-44px;top:16%}
.sd-the-2{right:-34px;bottom:11%;animation-delay:-3s}
@keyframes sd-troi{0%,100%{transform:translateY(0)}50%{transform:translateY(-10px)}}

/* Dải chữ chạy */
.sd-chay{position:relative;border-top:1px solid rgba(255,255,255,.14);background:rgba(0,0,0,.14);overflow:hidden;white-space:nowrap}
.sd-chay-trong{display:inline-flex;animation:sd-chay 42s linear infinite}
.sd-chay-trong>span{display:inline-flex;gap:30px;padding:15px 30px 15px 0;font-weight:600;font-size:.96rem;color:rgba(255,255,255,.92)}
.sd-chay i{font-style:normal;color:rgba(255,255,255,.42)}
.sd-chay:hover .sd-chay-trong{animation-play-state:paused}
@keyframes sd-chay{to{transform:translateX(-50%)}}

/* ---------- Dải số ---------- */
.sd-so{background:#fff;border-bottom:1px solid var(--vien)}
.sd-so-luoi{display:grid;grid-template-columns:repeat(4,1fr)}
.sd-so-luoi>div{padding:32px 24px;border-left:1px solid var(--vien)}
.sd-so-luoi>div:first-child{border-left:0;padding-left:0}
.sd-so b{display:block;font-size:2.5rem;font-weight:800;letter-spacing:-.035em;color:var(--chinh);line-height:1.05;font-variant-numeric:tabular-nums}
.sd-so span{display:block;color:var(--mo);font-size:.95rem;margin-top:8px;line-height:1.42}
.sd-so .sd-so-nhan{color:var(--nhan)}

/* ---------- Thẻ dự án ---------- */
.sd-the-luoi{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.sd-the-da{display:flex;flex-direction:column;background:#fff;border:1px solid var(--vien);border-radius:22px;overflow:hidden;
  transition:transform .35s cubic-bezier(.2,.7,.2,1),box-shadow .35s,border-color .35s}
.sd-the-da:hover{transform:translateY(-7px);box-shadow:0 26px 54px rgba(20,40,70,.15);border-color:transparent}
.sd-the-anh{position:relative;aspect-ratio:16/11;overflow:hidden;background:var(--nen-xanh)}
.sd-the-anh img{width:100%;height:100%;object-fit:cover;display:block;transition:transform 1s cubic-bezier(.2,.7,.2,1)}
.sd-the-da:hover .sd-the-anh img{transform:scale(1.07)}
.sd-tag{position:absolute;left:14px;top:14px;background:rgba(255,255,255,.95);color:var(--chinh);font-size:.78rem;font-weight:700;
  padding:6px 12px;border-radius:999px;box-shadow:0 4px 14px rgba(0,0,0,.12)}
.sd-the-than{padding:22px 24px 26px;display:flex;flex-direction:column;flex:1}
.sd-cdt{font-size:.86rem;color:var(--mo);margin:0 0 6px}
.sd-the-than h3{font-size:1.5rem;font-weight:800;letter-spacing:-.028em;margin:0 0 4px;line-height:1.15}
.sd-phu-ten{font-size:.92rem;color:var(--mo);margin:0 0 4px}
.sd-hop{font-weight:700;color:var(--chinh);margin:8px 0 16px;font-size:.98rem}
.sd-the-than ul{list-style:none;padding:0;margin:0 0 20px;display:grid;gap:10px}
.sd-the-than li{position:relative;padding-left:24px;font-size:.96rem;line-height:1.48}
.sd-the-than li::before{content:"";position:absolute;left:0;top:.42em;width:12px;height:12px;border-radius:4px;
  background:color-mix(in srgb,var(--chinh) 16%,#fff);border:2px solid var(--chinh)}
.sd-xem{margin-top:auto;font-weight:700;color:var(--chinh);display:inline-flex;gap:6px;align-items:center}
.sd-xem::after{content:"→";transition:transform .25s}
.sd-the-da:hover .sd-xem::after{transform:translateX(5px)}

/* ---------- Chọn nhanh ---------- */
.sd-chon{background:var(--nga)}
.sd-chon-luoi{display:grid;grid-template-columns:1fr 1fr;gap:52px;align-items:start}
.sd-chon .sd-dau-muc{margin-bottom:0}
.sd-chon-nut{display:grid;gap:10px;margin-top:26px}
.sd-chon-nut button{font:inherit;text-align:left;padding:16px 18px;border-radius:14px;border:1.5px solid #ddd6cb;background:#fff;cursor:pointer;
  font-weight:600;font-size:1rem;line-height:1.4;color:var(--chu);transition:border-color .2s,box-shadow .2s,transform .2s;display:flex;gap:14px;align-items:center}
.sd-chon-nut button:hover{transform:translateX(4px);border-color:color-mix(in srgb,var(--chinh) 50%,#ddd6cb)}
.sd-chon-nut button::before{content:"";flex:none;width:20px;height:20px;border-radius:50%;border:2px solid #c3bcb0;transition:.2s}
.sd-chon-nut button[aria-pressed=true]{border-color:var(--chinh);box-shadow:0 10px 26px rgba(31,58,95,.13)}
.sd-chon-nut button[aria-pressed=true]::before{border-color:var(--chinh);background:radial-gradient(circle,var(--chinh) 42%,#fff 46%)}
.sd-chon-nut button:focus-visible{outline:3px solid color-mix(in srgb,var(--chinh) 40%,transparent);outline-offset:2px}
.sd-chon-kq{position:sticky;top:104px}
.sd-kq{background:linear-gradient(150deg,var(--chinh),var(--dam));color:#fff;border-radius:24px;padding:34px 32px;box-shadow:0 28px 60px rgba(20,40,70,.22);animation:sd-hien-len .45s ease}
.sd-kq-nhan{font-size:.78rem;font-weight:700;letter-spacing:.16em;text-transform:uppercase;color:rgba(255,255,255,.7);margin:0 0 8px}
.sd-kq h3{font-size:1.9rem;font-weight:800;letter-spacing:-.03em;margin:0 0 12px;line-height:1.15}
.sd-kq p{color:rgba(255,255,255,.9);margin:0 0 14px;line-height:1.6}
.sd-kq .sd-luu-y{background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.16);border-radius:14px;padding:14px 16px;font-size:.96rem}
.sd-kq .sd-luu-y b{color:#fff}
.sd-kq a{display:inline-block;margin-top:6px;background:#fff;color:var(--chinh);font-weight:700;padding:12px 22px;border-radius:999px;transition:transform .2s}
.sd-kq a:hover{transform:translateY(-2px)}
@keyframes sd-hien-len{from{opacity:0;transform:translateY(14px)}to{opacity:1;transform:none}}

/* ---------- Ví dụ dòng tiền: mốc thời gian ---------- */
.sd-moc{list-style:none;padding:0;margin:0 0 30px;display:grid;grid-template-columns:repeat(4,1fr);position:relative;counter-reset:moc}
.sd-moc::before,.sd-moc::after{content:"";position:absolute;left:0;top:20px;height:3px;border-radius:3px}
.sd-moc::before{right:0;background:var(--vien)}
.sd-moc::after{width:0;background:var(--chinh);transition:width 1.8s cubic-bezier(.3,.6,.2,1) .2s}
.sd-moc.da-hien::after{width:100%}
.sd-moc li{position:relative;padding:58px 22px 0 0}
.sd-moc li::before{counter-increment:moc;content:counter(moc);position:absolute;top:0;left:0;width:42px;height:42px;border-radius:50%;background:#fff;
  border:3px solid var(--chinh);display:grid;place-items:center;font-weight:800;color:var(--chinh);z-index:1;box-sizing:border-box}
.sd-moc-khi{display:block;font-size:.8rem;font-weight:700;text-transform:uppercase;letter-spacing:.07em;color:var(--mo)}
.sd-moc b{display:block;font-size:1.85rem;font-weight:800;letter-spacing:-.03em;margin:6px 0 4px;line-height:1.15}
.sd-moc-ghi{display:block;font-size:.93rem;color:var(--mo);line-height:1.48}
.sd-tong{display:flex;flex-wrap:wrap;gap:12px 34px;background:var(--nen-xanh);border-radius:18px;padding:20px 24px;margin:0 0 34px}
.sd-tong div{display:flex;flex-direction:column}
.sd-tong span{font-size:.86rem;color:var(--mo)}
.sd-tong b{font-size:1.2rem;font-weight:800;color:var(--chinh)}
.sd-ghi-nho{font-size:.88rem;color:var(--mo);margin:-18px 0 30px}

/* Phần khoá: nêu tên, không nêu chi tiết */
.sd-khoa{display:grid;grid-template-columns:1.05fr .95fr;border:1px solid var(--vien);border-radius:24px;overflow:hidden;background:#fff}
.sd-khoa-chu{padding:34px}
.sd-khoa-chu h3{font-size:1.4rem;font-weight:800;letter-spacing:-.02em;margin:0 0 16px}
.sd-khoa-chu ul{list-style:none;margin:0 0 24px;padding:0;display:grid;gap:12px}
.sd-khoa-chu li{position:relative;padding-left:30px;line-height:1.5}
.sd-khoa-chu li::before{content:"";position:absolute;left:0;top:.18em;width:18px;height:18px;background:var(--chinh);
  -webkit-mask:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M7 10V7a5 5 0 0 1 10 0v3h1a2 2 0 0 1 2 2v8a2 2 0 0 1-2 2H6a2 2 0 0 1-2-2v-8a2 2 0 0 1 2-2h1Zm2 0h6V7a3 3 0 0 0-6 0v3Z'/%3E%3C/svg%3E") center/contain no-repeat;
          mask:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M7 10V7a5 5 0 0 1 10 0v3h1a2 2 0 0 1 2 2v8a2 2 0 0 1-2 2H6a2 2 0 0 1-2-2v-8a2 2 0 0 1 2-2h1Zm2 0h6V7a3 3 0 0 0-6 0v3Z'/%3E%3C/svg%3E") center/contain no-repeat}
.sd-khoa-mo{position:relative;background:var(--nen-xanh);padding:34px 30px;display:grid;gap:14px;align-content:center;overflow:hidden}
.sd-khoa-mo span{display:block;height:15px;border-radius:6px;background:linear-gradient(90deg,#c3cfde,#e2e8f0);filter:blur(2.5px)}
.sd-khoa-mo span:nth-child(3n){width:72%}.sd-khoa-mo span:nth-child(3n+2){width:88%}
.sd-khoa-mo em{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);font-style:normal;white-space:nowrap;background:var(--chinh);color:#fff;
  padding:11px 20px;border-radius:999px;font-weight:700;font-size:.92rem;box-shadow:0 12px 28px rgba(20,40,70,.25)}

/* ---------- Cách em làm việc ---------- */
.sd-cach-luoi{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.sd-cach{padding:28px 24px;border-radius:20px;background:#fff;border:1px solid var(--vien);transition:transform .3s,border-color .3s,box-shadow .3s}
.sd-cach:hover{transform:translateY(-5px);border-color:var(--chinh);box-shadow:0 18px 40px rgba(20,40,70,.1)}
.sd-cach svg{width:44px;height:44px;padding:10px;border-radius:12px;background:var(--nen-xanh);color:var(--chinh);box-sizing:border-box}
.sd-cach h3{font-size:1.14rem;font-weight:800;letter-spacing:-.015em;margin:16px 0 8px}
.sd-cach p{font-size:.95rem;color:var(--mo);margin:0;line-height:1.58}
.sd-trich{margin:56px auto 0;max-width:28ch;text-align:center;font-size:clamp(1.45rem,2.7vw,2.1rem);font-weight:800;letter-spacing:-.025em;line-height:1.28;color:var(--chinh);text-wrap:balance}
.sd-trich::before{content:"“";display:block;font-size:4rem;line-height:.7;color:color-mix(in srgb,var(--chinh) 28%,#fff)}

/* ---------- Bài mới ---------- */
.sd-bai-moi{background:var(--nga)}
.sd-bai-luoi{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.sd-bai{display:flex;flex-direction:column;background:#fff;border-radius:20px;overflow:hidden;border:1px solid var(--vien);transition:transform .3s,box-shadow .3s}
.sd-bai:hover{transform:translateY(-5px);box-shadow:0 20px 44px rgba(20,40,70,.12)}
.sd-bai-anh{aspect-ratio:16/10;overflow:hidden}
.sd-bai-anh img{width:100%;height:100%;object-fit:cover;display:block;transition:transform .8s}
.sd-bai:hover .sd-bai-anh img{transform:scale(1.05)}
.sd-bai-than{padding:20px 22px 24px}
.sd-bai-ngay{font-size:.84rem;color:var(--mo)}
.sd-bai h3{font-size:1.18rem;font-weight:800;letter-spacing:-.02em;line-height:1.3;margin:6px 0 8px}
.sd-bai:hover h3{color:var(--chinh)}
.sd-bai p{font-size:.95rem;color:var(--mo);margin:0;line-height:1.55}

/* ---------- Văn phòng ---------- */
.sd-vp{background:linear-gradient(135deg,var(--dam),var(--chinh));color:#fff;overflow:hidden}
.sd-vp-luoi{display:grid;grid-template-columns:.9fr 1.1fr;gap:60px;align-items:center}
.sd-vp img{display:block;width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:24px;box-shadow:0 30px 60px rgba(0,0,0,.3)}
.sd-vp .sd-nhan-xanh{color:rgba(255,255,255,.7)}
.sd-vp h2{font-size:clamp(1.6rem,2.9vw,2.3rem);line-height:1.18;letter-spacing:-.03em;font-weight:800;margin:0 0 14px;text-wrap:balance}
.sd-vp p{color:rgba(255,255,255,.86);margin:0 0 26px;line-height:1.65}

/* ---------- Khối cuối trang: mời nhắn Zalo ---------- */
.moi{background:var(--nga);border-top:0}
.moi-nut{display:flex;gap:12px;justify-content:center;flex-wrap:wrap}
.hero-nut-zalo{display:flex;justify-content:center}
.nut-lon{padding:14px 30px;font-size:1.02rem}
.ds-tieu-de{font-size:2rem;font-weight:800;letter-spacing:-.03em;margin:0 0 20px}
.ds-trong{color:var(--mo)}

/* ---------- Nút Zalo nổi ---------- */
.sd-noi{position:fixed;right:18px;bottom:18px;z-index:70;display:inline-flex;align-items:center;gap:9px;background:var(--chinh);color:#fff;
  border-radius:999px;padding:13px 20px 13px 16px;font-weight:700;font-size:.96rem;box-shadow:0 14px 34px color-mix(in srgb,var(--chinh) 45%,transparent);
  transition:transform .25s,opacity .3s;animation:sd-vao 0.6s ease 1.2s both}
.sd-noi:hover{transform:translateY(-3px) scale(1.03)}
.sd-noi-vong{position:absolute;inset:0;border-radius:inherit;border:2px solid var(--chinh);animation:sd-vong 2.4s ease-out infinite;pointer-events:none}
@keyframes sd-vong{0%{opacity:.75;transform:scale(1)}100%{opacity:0;transform:scale(1.4)}}
@keyframes sd-vao{from{opacity:0;transform:translateY(20px)}to{opacity:1;transform:none}}

/* ---------- Trang dự án ---------- */
.sd-da-hero{position:relative;isolation:isolate;overflow:hidden;color:#fff;min-height:min(78vh,720px);display:flex;align-items:flex-end;padding:120px 0 70px;background:var(--dam)}
.sd-da-hero::before{content:"";position:absolute;inset:0;z-index:-2;background:var(--anh) center/cover no-repeat;animation:sd-ken 22s ease-out both}
.sd-da-hero::after{content:"";position:absolute;inset:0;z-index:-1;background:linear-gradient(180deg,rgba(10,22,38,.15) 0%,rgba(10,22,38,.45) 45%,rgba(10,22,38,.88) 100%)}
@keyframes sd-ken{from{transform:scale(1.12)}to{transform:scale(1)}}
.sd-da-hero .khung{width:100%}
.sd-da-hero .sd-tag{position:static;display:inline-block;margin-bottom:18px}
.sd-da-hero h1{font-size:clamp(2.5rem,6.4vw,4.6rem);font-weight:800;letter-spacing:-.045em;line-height:1;margin:0 0 16px;text-shadow:0 4px 30px rgba(0,0,0,.25)}
.sd-da-hero p{font-size:1.16rem;max-width:58ch;color:rgba(255,255,255,.92);margin:0 0 28px;line-height:1.6;text-wrap:pretty}
.sd-nen-nga{background:var(--nga)}
.sd-nhanh{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.sd-nhanh>div{background:var(--nen-xanh);border-radius:18px;padding:20px 22px;transition:transform .25s}
.sd-nhanh>div:hover{transform:translateY(-3px)}
.sd-nhanh span{display:block;font-size:.8rem;font-weight:700;text-transform:uppercase;letter-spacing:.08em;color:var(--mo);margin-bottom:6px}
.sd-nhanh b{display:block;font-size:1.08rem;line-height:1.42;font-weight:700}
.sd-anh-luoi{display:grid;grid-template-columns:1.6fr 1fr;grid-template-rows:1fr 1fr;gap:14px;height:min(62vw,560px)}
.sd-anh-luoi figure{margin:0;position:relative;overflow:hidden;border-radius:18px;background:var(--nen-xanh)}
.sd-anh-luoi figure:first-child{grid-row:1/3}
.sd-anh-luoi img{width:100%;height:100%;object-fit:cover;display:block;transition:transform 1s}
.sd-anh-luoi figure:hover img{transform:scale(1.05)}
.sd-anh-luoi figcaption{position:absolute;left:12px;bottom:12px;background:rgba(10,22,38,.7);color:#fff;font-size:.8rem;padding:5px 10px;border-radius:8px}
.sd-nguon{font-size:.85rem;color:var(--mo);margin:10px 0 0}
.sd-hai{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.sd-hop-khung{border-radius:22px;padding:30px 30px 26px;background:#fff;border:1px solid var(--vien)}
.sd-hop-khung h3{font-size:1.3rem;font-weight:800;letter-spacing:-.02em;margin:0 0 16px}
.sd-hop-khung ul{list-style:none;margin:0;padding:0;display:grid;gap:14px}
.sd-hop-khung li{position:relative;padding-left:34px;line-height:1.55}
.sd-hop-khung li b{display:block}
.sd-dau li::before,.sd-chu-y li::before{position:absolute;left:0;top:.05em;width:22px;height:22px;border-radius:50%;display:grid;place-items:center;font-size:.8rem;font-weight:800}
.sd-dau li::before{content:"✓";background:var(--chinh);color:#fff}
.sd-chu-y{background:var(--nga);border-color:#e7e0d4}
.sd-chu-y li::before{content:"!";background:#fff;color:var(--chinh);border:2px solid var(--chinh);box-sizing:border-box}
.sd-dem-khung{display:inline-flex;gap:10px;margin:0 0 26px}
.sd-dem-khung div{min-width:74px;text-align:center;background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.22);border-radius:14px;padding:10px 8px;-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px)}
.sd-dem-khung b{display:block;font-size:1.9rem;font-weight:800;line-height:1.1;font-variant-numeric:tabular-nums}
.sd-dem-khung span{font-size:.74rem;text-transform:uppercase;letter-spacing:.08em;color:rgba(255,255,255,.75)}
.sd-dem-khung.sd-dem-nhan b{color:#fff}
.sd-dem-khung.sd-dem-nhan div:first-child{background:var(--nhan);border-color:var(--nhan)}
.sd-dai-dem{background:var(--dam);color:#fff;padding:26px 0}
.sd-dai-dem .khung{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:18px 28px}
.sd-dai-dem p{margin:0;font-weight:700;font-size:1.08rem}
.sd-dai-dem .sd-dem-khung{margin:0}
.sd-ghi-cuoi{font-size:.9rem;color:var(--mo);border-top:1px solid var(--vien);padding-top:18px;margin-top:40px}

/* ---------- Hiện dần khi cuộn ---------- */
.co-js .hien{opacity:0;transform:translateY(26px);transition:opacity .75s ease,transform .75s cubic-bezier(.2,.7,.2,1)}
.co-js .hien.da-hien{opacity:1;transform:none}
.co-js .sd-the-luoi .hien:nth-child(2),.co-js .sd-cach-luoi .hien:nth-child(2),.co-js .sd-bai-luoi .hien:nth-child(2){transition-delay:.12s}
.co-js .sd-the-luoi .hien:nth-child(3),.co-js .sd-cach-luoi .hien:nth-child(3),.co-js .sd-bai-luoi .hien:nth-child(3){transition-delay:.24s}
.co-js .sd-cach-luoi .hien:nth-child(4){transition-delay:.36s}

/* ---------- Màn hình vừa & nhỏ ---------- */
@media (max-width:980px){
  .sd-hero-luoi{grid-template-columns:1fr;gap:44px;padding-bottom:56px}
  .sd-hero-anh{width:min(280px,72%)}
  .sd-so-luoi{grid-template-columns:1fr 1fr}
  .sd-so-luoi>div{padding:24px 18px}
  .sd-so-luoi>div:nth-child(odd){border-left:0;padding-left:0}
  .sd-so-luoi>div:nth-child(n+3){border-top:1px solid var(--vien)}
  .sd-the-luoi,.sd-bai-luoi{grid-template-columns:1fr;max-width:560px}
  .sd-chon-luoi{grid-template-columns:1fr;gap:28px}
  .sd-chon-kq{position:static}
  .sd-cach-luoi{grid-template-columns:1fr 1fr}
  .sd-vp-luoi{grid-template-columns:1fr;gap:36px}
  .sd-khoa{grid-template-columns:1fr}
  .sd-nhanh{grid-template-columns:1fr 1fr}
  .sd-hai{grid-template-columns:1fr}
  .sd-moc{grid-template-columns:1fr}
  .sd-moc::before,.sd-moc::after{left:19px;top:0;bottom:0;width:3px;height:auto}
  .sd-moc::before{right:auto}
  .sd-moc::after{height:0;bottom:auto;transition:height 1.8s cubic-bezier(.3,.6,.2,1) .2s}
  .sd-moc.da-hien::after{width:3px;height:100%}
  .sd-moc li{padding:4px 0 26px 64px}
  .sd-moc li:last-child{padding-bottom:0}
}
@media (max-width:820px){
  .dau .khung{grid-template-columns:1fr auto;grid-template-areas:"ten phai" "menu menu";row-gap:10px}
  .ten-web{grid-area:ten;text-align:left}
  .phai{grid-area:phai}
  .menu{display:flex;grid-area:menu;gap:8px;overflow-x:auto;scrollbar-width:none;margin:0 -32px;padding:2px 32px 2px}
  .menu::-webkit-scrollbar{display:none}
  .menu a{flex:none;padding:7px 14px;border:1px solid var(--vien);border-radius:999px;font-size:.87rem;background:#fff}
  .menu a::after{display:none}
  .menu a[aria-current=page]{background:var(--chinh);border-color:var(--chinh);color:#fff}
  .sd-muc{padding:68px 0}
  .sd-da-hero{min-height:auto;padding:150px 0 52px}
  .sd-anh-luoi{grid-template-columns:1fr 1fr;grid-template-rows:auto auto;height:auto}
  .sd-anh-luoi figure:first-child{grid-row:auto;grid-column:1/3;aspect-ratio:16/10}
  .sd-anh-luoi figure{aspect-ratio:4/3}
}
@media (max-width:520px){
  .khung{padding-left:16px;padding-right:16px}
  .menu{margin:0 -16px;padding:2px 16px}
  .sd-hero{padding-top:54px}
  .sd-the-1{left:-14px}.sd-the-2{right:-14px}
  .sd-so b{font-size:2rem}
  .sd-cach-luoi,.sd-nhanh{grid-template-columns:1fr}
  .sd-kq{padding:28px 22px}
  .sd-khoa-chu{padding:26px 22px}
  .sd-hero-nut .sd-nut{flex:1 1 100%}
  .sd-noi{right:14px;bottom:14px;padding:14px}
  .sd-noi-chu{display:none}
  .sd-dem-khung div{min-width:62px}
  .sd-dem-khung b{font-size:1.5rem}
}

/* Người dùng tắt chuyển động: giữ nguyên mọi thứ, chỉ bỏ hiệu ứng */
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .co-js .hien{opacity:1;transform:none;transition:none}
  .sd-chay-trong,.sd-the,.sd-noi,.sd-noi-vong,.sd-hero::before,.sd-hero::after,.sd-da-hero::before{animation:none}
  .sd-moc::after{transition:none}
}

/* Dải mở đầu hiện bằng CSS, không chờ JavaScript (chữ đầu trang phải thấy ngay) */
.sd-hero-chu{animation:sd-hien-len .8s ease both}
.sd-hero-anh{animation:sd-hien-len .9s ease .15s both}
.sd-da-hero .khung{animation:sd-hien-len .8s ease .1s both}
@media (max-width:1180px){.sd-the-1{left:-18px}.sd-the-2{right:-14px}}
@media (prefers-reduced-motion:reduce){.sd-hero-chu,.sd-hero-anh,.sd-da-hero .khung{animation:none}}

/* ---------- Clip dự án (07/11/2026) ---------- */
/* Nền video đầu trang dự án: clip ngắn không tiếng chạy lặp, ảnh đại diện làm ảnh chờ */
.sd-da-nen{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:-2;background:var(--dam)}
.sd-da-hero.co-video::before{display:none}
.sd-da-hero.co-video::after{background:linear-gradient(180deg,rgba(10,22,38,.2) 0%,rgba(10,22,38,.4) 45%,rgba(10,22,38,.9) 100%)}

/* Khối xem clip: ảnh chờ + nút phát lớn, bấm mới tải clip */
.sd-clip-luoi{display:grid;grid-template-columns:repeat(var(--cot,2),1fr);gap:20px}
.sd-clip-luoi.ba{--cot:3}
.sd-clip-luoi.mot{--cot:1;max-width:980px}
.sd-clip{margin:0;position:relative;border-radius:20px;overflow:hidden;background:#0d1b2c;box-shadow:0 20px 44px rgba(20,40,70,.16)}
.sd-clip-lon{grid-column:1/-1}
.sd-clip video{display:block;width:100%;aspect-ratio:16/9;object-fit:cover;background:#0d1b2c}
.sd-phat{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;border:0;cursor:pointer;color:#fff;font:inherit;
  background:linear-gradient(180deg,rgba(10,22,38,0) 40%,rgba(10,22,38,.75) 100%);transition:background .3s}
.sd-phat:hover{background:linear-gradient(180deg,rgba(10,22,38,.15) 30%,rgba(10,22,38,.8) 100%)}
.sd-phat i{width:78px;height:78px;border-radius:50%;background:rgba(255,255,255,.95);display:grid;place-items:center;box-shadow:0 12px 34px rgba(0,0,0,.35);transition:transform .25s;position:relative}
.sd-phat i::before{content:"";margin-left:6px;border-style:solid;border-width:14px 0 14px 23px;border-color:transparent transparent transparent var(--chinh)}
.sd-phat i::after{content:"";position:absolute;inset:-8px;border-radius:50%;border:2px solid rgba(255,255,255,.7);animation:sd-vong 2.2s ease-out infinite}
.sd-phat:hover i{transform:scale(1.08)}
.sd-phat span{position:absolute;left:18px;right:18px;bottom:16px;text-align:left;font-weight:700;font-size:1.02rem;line-height:1.35;text-shadow:0 2px 10px rgba(0,0,0,.4)}
.sd-phat span small{display:block;font-weight:500;font-size:.85rem;opacity:.85}
.sd-clip.dang-phat .sd-phat{display:none}
.sd-clip-luoi.ba .sd-phat i{width:62px;height:62px}
.sd-clip-luoi.ba .sd-phat i::before{border-width:11px 0 11px 18px;margin-left:5px}

/* Thẻ dự án trang chủ: clip ngắn tự chạy khi cuộn tới */
.sd-the-anh video{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:0;transition:opacity .6s}
.sd-the-anh video.dang-chay{opacity:1}
.sd-the-anh .sd-tag{z-index:1}
.sd-the-anh .sd-co-clip{position:absolute;right:14px;bottom:14px;z-index:1;background:rgba(10,22,38,.72);color:#fff;font-size:.74rem;font-weight:700;padding:5px 10px;border-radius:999px;display:inline-flex;gap:6px;align-items:center}
.sd-the-anh .sd-co-clip::before{content:"";width:7px;height:7px;border-radius:50%;background:#fff;animation:sd-nhay 1.4s ease-in-out infinite}
@keyframes sd-nhay{0%,100%{opacity:1}50%{opacity:.25}}

@media (max-width:820px){
  .sd-clip-luoi,.sd-clip-luoi.ba{--cot:1}
  .sd-clip-luoi.ba{gap:16px}
}
@media (prefers-reduced-motion:reduce){
  .sd-phat i::after,.sd-the-anh .sd-co-clip::before{animation:none}
}
.sd-clip-muc{background:var(--dam);color:#fff}
.sd-clip-muc .sd-nhan-xanh{color:rgba(255,255,255,.7)}
.sd-clip-muc .sd-dau-muc p{color:rgba(255,255,255,.82)}
.sd-clip-muc .sd-nguon{color:rgba(255,255,255,.6)}

/* ---------- Trang theo dõi (Lotte) · mốc dọc, video nhúng, thẻ rộng ---------- */
.sd-moc.doc{grid-template-columns:1fr;max-width:760px}
.sd-moc.doc::before,.sd-moc.doc::after{left:19px;top:0;bottom:0;width:3px;height:auto}
.sd-moc.doc::before{right:auto}
.sd-moc.doc::after{height:0;bottom:auto;transition:height 2.2s cubic-bezier(.3,.6,.2,1) .2s}
.sd-moc.doc.da-hien::after{width:3px;height:100%}
.sd-moc.doc li{padding:4px 0 26px 64px}
.sd-moc.doc li:last-child{padding-bottom:0}
.sd-moc.doc b{font-size:1.25rem;letter-spacing:-.015em}
.sd-moc.doc li.sd-moc-sap::before{border-style:dashed;color:var(--mo);border-color:var(--mo)}
.sd-clip iframe{display:block;width:100%;aspect-ratio:16/9;border:0;background:#0d1b2c}
.sd-the-rong{display:grid;grid-template-columns:1.1fr 1fr;margin-top:26px;background:#fff;border:1px solid var(--vien);border-radius:22px;overflow:hidden;
  transition:transform .35s cubic-bezier(.2,.7,.2,1),box-shadow .35s}
.sd-the-rong:hover{transform:translateY(-5px);box-shadow:0 26px 54px rgba(20,40,70,.15)}
.sd-the-rong .sd-the-anh{aspect-ratio:auto;min-height:280px}
.sd-the-rong:hover .sd-the-anh img{transform:scale(1.06)}
.sd-the-rong .sd-the-than{padding:28px 30px}
.sd-the-rong:hover .sd-xem::after{transform:translateX(5px)}
.sd-ba-moc{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.sd-ba-moc>div{background:#fff;border:1px solid var(--vien);border-radius:20px;padding:24px 22px;transition:transform .3s,border-color .3s}
.sd-ba-moc>div:hover{transform:translateY(-4px);border-color:var(--chinh)}
.sd-ba-moc b{display:block;font-size:2rem;font-weight:800;color:var(--chinh);line-height:1}
.sd-ba-moc h3{font-size:1.1rem;font-weight:800;margin:12px 0 8px}
.sd-ba-moc p{margin:0;color:var(--mo);font-size:.95rem;line-height:1.55}
@media (max-width:980px){
  .sd-the-rong{grid-template-columns:1fr;max-width:560px}
  .sd-the-rong .sd-the-anh{min-height:0;aspect-ratio:16/11}
  .sd-ba-moc{grid-template-columns:1fr}
}

/* Menu 4 dự án: màn rộng thu gọn chữ; màn vừa (≤1180px) chuyển menu xuống hàng thứ hai dạng nút */
.sd-da-hero h1{text-wrap:balance}
@media (min-width:1181px){.menu{gap:15px}.menu a{font-size:.87rem}}
@media (max-width:1180px){
  .dau .khung{grid-template-columns:1fr auto;grid-template-areas:"ten phai" "menu menu";row-gap:10px}
  .ten-web{grid-area:ten;text-align:left}
  .phai{grid-area:phai}
  .menu{display:flex;grid-area:menu;gap:8px;overflow-x:auto;scrollbar-width:none;margin:0 -32px;padding:2px 32px}
  .menu::-webkit-scrollbar{display:none}
  .menu a{flex:none;padding:7px 14px;border:1px solid var(--vien);border-radius:999px;font-size:.87rem;background:#fff}
  .menu a::after{display:none}
  .menu a[aria-current=page]{background:var(--chinh);border-color:var(--chinh);color:#fff}
}
@media (max-width:520px){.menu{margin:0 -16px;padding:2px 16px}}